its final... i think my coughing is 75% psychological and 25% phlem... hmmz.. u wanna know why? was doing this experiment on myself, becoz i realise tt i cough more then ever during my piano lesson... so i wonder why... then, apparently i realise tt most of the time when i have like a panic attack, i cough and my lungs become like hollow hollow one... so i started controlling my tots, like... everytime i feel it coming.. i'll go... it's okay, relax, breathe breathe BREATHE!! and then i can feel tt my lungs return to normal... so, next step... how to stop myself from having panic attack...